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## 1.60.0

**`(feat):`** Add XML support for xml-encoded object types (e.g. TwiML). Generated types gain
`ToXml()`/`ToXmlElement()`, `<Type>FromXml(string)`/`<Type>FromXmlElement(...)`,
fluent child builders (e.g. `response.Say(...)`, `Add`-prefixed on collision), and
`ExtraAttributes`/`ExtraChildren` to round-trip unknown attributes and elements.
A standard-library `core/xml.go` runtime is emitted only when xml-encoded types exist.